Tobie’s Stock RB26 pistons and rods

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Tobie
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Tobie’s Stock RB26 pistons and rods

Post by Tobie »

I have sets of mint condition stock RB26 pistons, the perfect cure for the RB25 guys with soft pistons, the RB26 stock piston is said to be allot stronger than the RB 25 ones.

6x pistons = R1500

Also have some conrods, on the uk site guys run them past 600HP

6x rods = R1500

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Last edited by Tobie on Mon Sep 27, 2010 12:34 am, edited 4 times in total.
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Post by ReeceZ »

Rat, buy it!
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RB25SX
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Post by RB25SX »

Just if u didnt know, the comp height of the RB26 piston is 1mm lower than RB25. U can use it but comp will be very low, or u will have to skim the block to compensate.
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rat
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Post by rat »

i know the RB25 is 9:1 and the RB26 is 8.5:1 so would using the RB26 in a RB25 make it 8.5 or lower?
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Post by RB25SX »

The rb26 piston compensates for longer crank stroke with a 1mm lower comp hight. Not sure if u will have 8.5:1 if u fit it in RB25. Depends on piston dome volume. If u work out from 8.7:1 less 1mm gives u 8:1 on RB25 (86 bore X 71.7 stroke)(16cc dome, 64cc head), so it might be a bit low. Can compensate with 0.5 off head or block to give 8.3:1
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Post by rat »

ja that is a bit low but if you get the rb26 crank as well then you are fine
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Post by RB25SX »

rat wrote:ja that is a bit low but if you get the rb26 crank as well then you are fine
Yes, should be fine with crank. RB26 rods are also stronger than RB25 (same lenth).
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Post by rat »

sorry tobie for the off topic. Thanks rb25sx for the info
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Post by Tobie »

No problem, this is good info for future buyers……

So with the lower compression and stronger pistons I guess one could up the boost a bit more.
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Post by Tobie »

:arrow:
Last edited by Tobie on Sat Jan 16, 2010 2:52 pm, edited 1 time in total.
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Post by SilviaS13 »

Hello, Were all the pistons sold?
drifterz do it slideways...
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Tobie
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Post by Tobie »

:arrow:
Last edited by Tobie on Sat Jan 16, 2010 2:54 pm, edited 1 time in total.
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Post by smoothedgp »

ill take them if you still have them
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Tobie
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Post by Tobie »

PM'ed :arrow:
Last edited by Tobie on Sat Jan 16, 2010 2:53 pm, edited 1 time in total.
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Post by 200sxrb25 »

Can i buy a set pistons and rod?
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